What is CVE-2026-61866?

CVE-2026-61866 is a low-severity vulnerability in Imagemagick, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 2.9/10. Published 2026-07-15.

How severe is CVE-2026-61866?

Low severity. CVSS v3 base score is 2.9 out of 10.

Vulnerability in Imagemagick

CVE-2026-61866

ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the JNG encoder when a blob cannot be opened. Attackers can trigger the memory leak by providing malformed JNG files that fail blob operations, causing resource exhaustion.

CVSS v3 metric

CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Imagemagick — versions 0, 7.1.2-26

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-61866?: CVE-2026-61866 is a low-severity vulnerability in Imagemagick, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 2.9/10. Published 2026-07-15.
How severe is CVE-2026-61866?: Low severity. CVSS v3 base score is 2.9 out of 10.